Dielectric and pyroelectric activities in Pb(Zr1−xTix)O3 ceramics: The role of the phase transition effects |
| |
Authors: | Libing Chen Ruihong LiangHengchang Nie Zhiyong ZhouFei Cao Xianlin Dong |
| |
Affiliation: | Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People''s Republic of China |
| |
Abstract: | Pure and Nb-doped Pb(Zr1−xTix)O3 (x = 0.47, 0.48, 0.50) ceramics were prepared by conventional solid-state reaction technique. Dielectric anomalies are observed in both kinds of samples near room temperature. The anomalies could be depressed by donor doping and prefer to be significant in ceramics with tetragonal crystallographic phase. Phase transition mechanism and domain wall pinning effect are proposed to explain this anomaly, and the former is considered as the dominated reason. Further results of the pyroelectric measurements confirm the existence of the ferroelectric–ferroelectric phase transition. |
| |
Keywords: | Lead zirconate titanate Dielectric anomaly Pyroelectric properties Phase transition |
本文献已被 ScienceDirect 等数据库收录! |